Question

students in ms. delgados science class built machines. they measured the input and output forces. the results of four students are listed in the table.

student	input force (n)	output force (n)
lian	400	350
dipak	250	450
aida	300	375

which lists the students in order from student whose machine has the least mechanical advantage to student whose machine has the greatest mechanical advantage?
o brian, dipak, aida, lian
o lian, dipak, aida, brian
o brian, lian, aida, dipak
o lian, aida, dipak, brian

Explanation:

Step1: Recall mechanical - advantage formula

Mechanical Advantage (MA) = $\frac{\text{Output Force}}{\text{Input Force}}$

Step2: Calculate MA for Brian

MA_Brian=$\frac{300}{150}=2$

Step3: Calculate MA for Lian

MA_Lian=$\frac{350}{400}= 0.875$

Step4: Calculate MA for Dipak

MA_Dipak=$\frac{450}{250}=1.8$

Step5: Calculate MA for Aida

MA_Aida=$\frac{375}{300}=1.25$

Step6: Compare MA values

0.875 (Lian) < 1.25 (Aida) < 1.8 (Dipak) < 2 (Brian)

Answer:

Lian, Aida, Dipak, Brian